EP0052755A3 - System for generating multiple virtual displays on a single display screen - Google Patents

System for generating multiple virtual displays on a single display screen Download PDF

Info

Publication number: EP0052755A3
Authority: EP; European Patent Office
Prior art keywords: display screen; multiple virtual; single display; generating multiple; virtual displays
Prior art date: 1980-11-20
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP81108558A

Other versions

EP0052755A2 (en

EP0052755B1 (en

Inventor

William Charles Cason

Ward Arthur Kuecker

Paul Ray Herrold

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

International Business Machines Corp

Original Assignee

International Business Machines Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1980-11-20

Filing date

1981-10-20

Publication date

1982-11-03

1981-10-20 Application filed by International Business Machines Corp filed Critical International Business Machines Corp

1982-06-02 Publication of EP0052755A2 publication Critical patent/EP0052755A2/en

1982-11-03 Publication of EP0052755A3 publication Critical patent/EP0052755A3/en

1985-06-12 Application granted granted Critical

1985-06-12 Publication of EP0052755B1 publication Critical patent/EP0052755B1/en

Status Expired legal-status Critical Current

Links

Classifications

- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/153—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using cathode-ray tubes
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F40/00—Handling natural language data
- G06F40/10—Text processing
- G06F40/103—Formatting, i.e. changing of presentation of documents
- G06F40/106—Display of layout of documents; Previewing

EP81108558A 1980-11-20 1981-10-20 Text-processing system generating multiple virtual displays on a single display screen Expired EP0052755B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US06/208,817 US4484302A (en)	1980-11-20	1980-11-20	Single screen display system with multiple virtual display having prioritized service programs and dedicated memory stacks
US208817		2002-08-01

Publications (3)

Publication Number	Publication Date
EP0052755A2 EP0052755A2 (en)	1982-06-02
EP0052755A3 true EP0052755A3 (en)	1982-11-03
EP0052755B1 EP0052755B1 (en)	1985-06-12

Family

ID=22776174

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP81108558A Expired EP0052755B1 (en)	1980-11-20	1981-10-20	Text-processing system generating multiple virtual displays on a single display screen

Country Status (4)

Country	Link
US (1)	US4484302A (en)
EP (1)	EP0052755B1 (en)
JP (1)	JPS5797580A (en)
DE (1)	DE3170947D1 (en)

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1980
- 1980-11-20 US US06/208,817 patent/US4484302A/en not_active Expired - Lifetime
1981
- 1981-09-14 JP JP56144091A patent/JPS5797580A/en active Granted
- 1981-10-20 EP EP81108558A patent/EP0052755B1/en not_active Expired
- 1981-10-20 DE DE8181108558T patent/DE3170947D1/en not_active Expired

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Non-Patent Citations (1)

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Title
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Also Published As

Publication number	Publication date
JPH046955B2 (en)	1992-02-07
DE3170947D1 (en)	1985-07-18
US4484302A (en)	1984-11-20
EP0052755A2 (en)	1982-06-02
EP0052755B1 (en)	1985-06-12
JPS5797580A (en)	1982-06-17

Legal Events

Date	Code	Title	Description
1982-04-03	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1982-06-02	17P	Request for examination filed	Effective date: 19811020
1982-06-02	AK	Designated contracting states	Designated state(s): DE FR GB IT
1982-09-01	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1982-11-03	AK	Designated contracting states	Designated state(s): DE FR GB IT
1985-04-12	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1985-06-12	AK	Designated contracting states	Designated state(s): DE FR GB IT
1985-06-12	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 19850612
1985-07-18	REF	Corresponds to:	Ref document number: 3170947 Country of ref document: DE Date of ref document: 19850718
1985-08-09	ET	Fr: translation filed
1986-04-22	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1986-04-22	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1986-06-11	26N	No opposition filed
1992-10-31	ITTA	It: last paid annual fee
2000-10-03	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20001003 Year of fee payment: 20
2000-10-18	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 20001018 Year of fee payment: 20
2000-11-01	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20001101 Year of fee payment: 20
2001-10-19	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20011019
2001-11-14	REG	Reference to a national code	Ref country code: GB Ref legal event code: PE20 Effective date: 20011019

Publication	Publication Date	Title
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